/Engine/Source/Runtime/Engine/Classes/Particles/Location/ParticleModuleLocationBoneSocket.h
bool GetBoneInfoForSourceIndex ( [FModuleLocationBoneSocketInstancePayload](API\Runtime\Engine\Particles\Location\FModuleLocationBoneSocketInstanc-) * InstancePayload, [USkeletalMeshComponent](API\Runtime\Engine\Components\USkeletalMeshComponent) * SourceComponent, int32 SourceIndex, FMatrix & OutBoneMatrix, FVector & OutOffset ) const